Subsidiary Name

​

State of Formation

American Ecology Environmental Services Corp.

​

Texas

CRN Denizcliik Anonim Sirketi /aka/ CRN Martime S.A.

​

Turkey

Eagle Construction and Environmental Services, LLC

​

Delaware

ENPRO Holdings Group, Inc.

​

Massachusetts

ENPRO Services of Vermont, Inc.

​

Maine

Envirite of Illinois, Inc.

​

Delaware

Envirite of Ohio, Inc.

​

Delaware

Envirite of Pennsylvania, Inc.

​

Delaware

Envirite Transportation, LLC

​

Ohio

Environmental Services Inc.

​

Ontario

EQ de Mexico, Inc.

​

Mexico

EQ Detroit, Inc.

​

Michigan

EQ Holdings, Inc.

​

Delaware

EQ Industrial Services, Inc.

​

Michigan

EQ Metals Recovery, LLC

​

Ohio

EQ Northeast, Inc.

​

Massachusetts

EQ Parent Company, Inc.

​

Delaware

JFL-NRC Holdings, LLC

​

Delaware

Michigan Disposal, Inc.

​

Michigan

National Response Corporation

​

Delaware

National Response Corporation (Angola) LDA

​

Angola

National Response Corporation (NRC) Environmental Services UAE L LC

​

United Arab Emirates

National Response Corporation Aruba

​

Aruba

National Response Corporation Mexico NRC

​

Mexico

National Response Corporation of Puerto Rico

​

Delaware

NRC (Asia Pacific) LTD.

​

Thailand

NRC (B.V.I.) Ltd.

​

British Virgin Islands

NRC (East Africa) Limited

​

Uganda

NRC (Egypt) LLC

​

Egypt

NRC (Malta) Limited

​

Marshall Islands

NRC (West Africa) LLC

​

Marshall Islands

NRC Alaska, LLC

​

Delaware

NRC East Environmental Services, Inc.

​

Massachusetts

NRC Eastern Mediterranean Ltd.

​

Israel

NRC Environmental of Maine, Inc.

​

Maine

NRC Environmental Protection Waste Management & Remediation Services AS

​

Turkey

NRC Environmental Services (UK) Limited

​

Scotland

NRC Environmental Services, Inc.

​

Washington

NRC Group Holdings Corp.

​

Delaware

NRC Group Holdings, LLC

​

Delaware

NRC Gulf Environmental Services, Inc.

​

Delaware

NRC Intermediate Int. Holding Company, LLC

​

Delaware

NRC Int. Holding Company, LLC

​

Marshall Islands

NRC International Services, Ltd.

​

Marshall Islands

NRC Kazakhstan LLP

​

Kazakhstan

NRC NY Environmental Services, Inc.

​

Delaware

NRC Payroll Management LLC

​

Delaware

NRC Servicing Limited

​

United Kingdom

NRC (Trinidad and Tobago) Ltd.

​

Trinidad

NRC US Holding Company, LLC

​

Delaware

NRC WWS LTD

​

United Kingdom

OP-TECH Avix, Inc.

​

New York

OSRV Holdings, Inc.

​

Delaware

Quail Run Services, LLC

​

Texas

RTF Romulus, LLC

​

Michigan

SES-Haztec Servicos De Reposta A Emrgencias S.A.

​

Brazil

South Atlantic Response S.A.

​

Argentina

Southern Waste Services, Inc.

​

Florida

Specialized Response Solutions (Canada) Inc.

​

Alberta

Specialized Response Solutions, L.P.

​

Texas

Stablex Canada Inc.

​

Canada

Sureclean A.S.

​

Norway

Sureclean Holdco Limited

​

United Kingdom

TMC Services, Inc.

​

Massachusetts

US Ecology Energy Waste Disposal Services, LLC

​

Delaware

US Ecology Holdings, Inc.

​

Delaware

US Ecology Houston, Inc.

​

Delaware

US Ecology Idaho, Inc.

​

Delaware

US Ecology Illinois, Inc.

​

California

US Ecology Karnes County Disposal, LLC

​

Texas

US Ecology Livonia, Inc.

​

Michigan

US Ecology Michigan, Inc.

​

Michigan

US Ecology Nevada, Inc.

​

Delaware

US Ecology Romulus, Inc.

​

Michigan

US Ecology Stablex Holdings, Inc.

​

Delaware

US Ecology Sulligent, Inc.

​

Michigan

US Ecology Tampa, Inc.

​

Michigan

US Ecology Taylor, Inc.

​

Michigan

US Ecology Texas, Inc.

​

Delaware

US Ecology Thermal Services, Inc.

​

Delaware

US Ecology Transportation Solutions, Inc.

​

Delaware

US Ecology Tulsa, Inc.

​

Michigan

US Ecology Vernon, Inc.

​

Delaware

US Ecology Washington, Inc.

​

Delaware

US Ecology Winnie, LLC

​

Delaware

USE Canada Holdings Inc.

​

Canada

USE EWD Holdco, LLC

​

Delaware

Venezuelan Response Corporation

​

Venezuela

W.I.S.E. Environmental Solutions Inc.

​

Ontario

Waste Repurposing International, Inc.

​

Delaware

Wayne Disposal, Inc.

​

Michigan